think|thinking

我想是的。

I ___think so.

我常常想起他们。

I often ___think of them.

我认为她叫乔安娜。

I ___think she's called Joanna.

我正在考虑开始跑步。

I'm ___thinking of taking up running.

我正在考虑买一辆新车。

I'm ___thinking about buying a new car.

你打电话来时，我刚好正在想你。

I was just ___thinking about you when you phoned.